SU1291308A1 - Automatic machine for making plates and assembling heat-exchanger units - Google Patents

Abstract

The invention relates to equipment for the production of heat exchangers, in particular to automatic machines for the production of plates from a tape and their insertion onto tubes. The purpose of the invention is to increase the reliability of the machine. The goal is achieved by supplying the machine gun with a protrusion slider, which, being a locking element of the lock, allows to obtain a reliable engagement. The presence of a knob for adjusting the stroke of the toothed clamp allows an accurate cassette feed per step. The presence of progressively moving catchers eliminates the bending of the tubes. 3 il. to with cx

Description

eleven

The invention relates to equipment for the production of heat exchangers, in particular, automatic machines for manufacturing plates made from a tape and pressing them onto tubes.

The aim of the invention is to increase the reliability of operation.

FIG. 1 shows an automaton, view5 in FIG. 2 shows a device for moving the plates and pressing them onto the tubes in the feeding position of the movable cassette (FIG. 3) a device for securing and centering the tubes.

The automatic machine for manufacturing plates and assembling sections of heat exchangers contains a belt feed mechanism, which comes from an unwinding device 1 (Fig. 1), through correct rollers 2 into the die. The belt feed mechanism consists of a clamping feed consisting of a stationary brake carriage 3 with rollers 4 and a movable carriage 5 which moves in the direction from the rocker mechanism.

The stamp for receiving holes in the tape consists of a movable pin 6, making reciprocating movement, and a frame 7.

The stamp includes punches for punching and flanging the holes, the spigot and pressure elements. The node segments stamped plates from the tape consists of a fixed knife 8 and a movable knife 9 mounted on the slider 10.

The device for moving the plates and pressing them onto the tubes comprises a gear latch 11 mounted in a reciprocating movement of the slider 10 mounted in the housing 12, equipped with a displacement adjustment unit 13, a rail 14, a movable cassette 15, a cassette guide 16, a cassette position stopper 17 , fixing the gear rail 18, conductor plates 19 installed in the cassette 15, swivel rails

20 and top plate 21. I

The slider 10 is provided with a protrusion 22 (FIG. 2), and the toothed retainer 11 is pressed by the spring 23. The displacement adjustment unit 13 is made in the Bi-slot of the screw equipped with a lock nut 24. The case 12 is spring-loaded with a spring 25,

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The feed drive consists of a pusher 26 (Fig. 1) and a rocker arm 27 mounted on an axis 28.

The fixture for securing and centering the tubes 29 comprises catchers 30, guide elements 31 and 32 and expansion pins 33. The catchers 30 (Fig. 3) have holes shaped like a pipe 29. One of the guides 31 is solid and is rigidly connected the bottom catcher, and its shoulder suspended on a fixed crossbar 34, the guide 32 is made tubular and freedoms

but moves relative to the rod

n guide 31 and cross member 34. The expansion pin consists of a body 35 fixed in cross member 34, a rubber liner 36, balls 37 and a stopper 38

The machine works in the following way.

In the initial position, the stamp is opened, the movable plate 6 (Fig. 1) is raised by the stroke value. The tape is passed to the melody by the rollers 2 and 4, by the knives 8 and 9 into the gap between the conductor plates 19. The stack of conductor plates rests on the base

- h of the movable cassette 1j, which is in a fixed height position due to the retention of the rail 18 by the stopper 17. The tubes 29 are passed through the holes of the catchers 30 and

they are put on large pins 33. The balls are pressed into the rubber at the same time so that the pipes remain suspended. When 5I plate is lowered 6, the punch punches make holes in the

tape, the pusher 26 is located at the end of the rocker arm 27, which, turning around the axis 28, begins to lift the slider 10. The knife 9 attached to the slider 10 moves up, abuts the belt and cuts the plate. The slider 10 (Fig. 2) rests on the housing 12, which through the fixture 11, the rail 14 raises the movable cassette 15 upwards. Condominal pLastin package

rises in a feed pitch equal to the pitch between the fins of the heat exchanger section,

The end of the tube enters the hole in the plate and in the process of moving

plate up tube is pressed. In the engagement of the retainer 11 and the slats 14 are simultaneously several teeth, which is positive

1291308

influence on durable work

laziness, and the closure by the protrusion 22 ficPo compared to the known device, the proposed has several advantages.

It allows you to securely engage the retainer with the rail in the process of pressing the plates onto the pipes and ensures accurate feeding of the mover eliminates accidental disconnection from the rail.

When the housing 12 is lifted by a step of 5 gates, a gap is formed between the head of the screw 13 and the frame 7, equal to the movement of the moving cassette.

During long-term operation of the automaton, the moving element cassette 10 can wear out one step. This violates the accuracy of the feed stroke, as a result of which the gap between the screw head and the statin is reduced. Adjustment is done by

the lock nut release 24 and re-15 AB toMaT for making the thimble plates 13. After adjusting the gap equal to the feed step of the lock nut 24, the screw is locked.

When lifting the cassette 15 at full speed, the stopper 17 engages the teeth e1) of the striking rail 18. When the plate 6 (Fig. 1) is raised, the slider 10 is lowered, the protrusion leaves the engagement with the latch 11 and the housing 12, which is spring-loaded (Fig. 2) Return 25 To move the plates and press it down the feed step down, the tube retainer, made in the form

20

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Claims (1)

Invention Formula and assembling sections of heat exchangers, containing a stamp mounted on the frame for receiving holes in the tape, a tape feed mechanism into the stamp, a gshastin section from the tape assembly, fixtures for centering heat exchanger tubes made in the form of centering pins and movable catchers, a device 11, pressing the spring 23 and lowering it, jumps one tooth down. The cassette 15, at this moment held by the stopper 17, remains stationary. When lifting the plate 6 (Fig. 1), the movable carriage moves to the left and feeds the belt one step forward. The brake carriage remains stationary and holds installed with the possibility of reciprocating movement of the cassette with a set of conductor plates, 30 guiding cassettes installed on the frame parallel to the centering pin, a step-by-step cassette feeding mechanism having a gear rack and a toothed retainer mounted with when returning the movable carriage 35, the tape can interact with the tooth into its initial position. A movable knife with a rack and a cassette movement actuator, characterized in that, in order to increase the reliability of operation, it is provided with a cassette movement drive connected to the cassette installed with the possibility of interacting with a gear lock, a slider with a protrusion installed with the possibility of 9 is lowered, at the end of the stroke between the knives, a gap is formed to skip the belt during the next stroke. As the section is set, the top plate 21 abuts first into the lower lattice, 1 hiler 30, and then into the upper one, moves interaction with the gear lock mounted on the frame, spring-loaded cassette position stopper, the cassette is equipped with a locking gear rack mounted with the possibility of cum until the end of the set along with nowhere. After the assembly of the heat exchanger section is completed, the retainer 11 and the stopper 17 are forcibly recessed and the movable cartridge 15 is lowered along the guides 16. Together with the cassette 50 each in position of the cassette position, the teeth of the turntables of the 20th chat, the rake of the stepping feed mechanism is lowered and the conductor gshastin package with the assembled section is lowered. In the lower position, the cassette stops and the guides 20 rotate counterclockwise to the horizontal position and the heat exchanger section is released from the bag mounted on the cassette, and the gear lock is installed with the possibility of at least two pairs of teeth interacting with the step feed mechanism and reciprocating movement in the direction of the cassette movement, in addition to the additional conductor plates. Catchers go down behind the cassette. Compared with the known device, the proposed has several advantages. It allows you to securely engage the retainer with the rail in the process of pressing the plates onto the pipes and provides an accurate feed of the movable cassette to the step. Noah cassette on step. R Invention Formula AB toMaT for plate production To move the plates and napressov-tube, made in the form and assembling sections of heat exchangers, containing a stamp mounted on the frame for receiving holes in the tape, a tape feed mechanism into the stamp, a gshastin section from the tape assembly, devices for securing and centering the heat exchanger tubes, made in the form of centering pins and moving catchers, the device mounted with the possibility of reciprocating movement of the cassette with a set of conductor plates, guiding cassettes mounted on the frame parallel to the centering pins, a step-by-step cassette feeding mechanism having a gear rail and a toothed retainer mounted with 35 interoperability with gear rack and drive for moving sets, characterized in that, in order to increase reliability of operation, it is equipped with a cassette-coupled movement of a cassette installed with the possibility of interacting with a toothed lock, a slide with a protrusion installed with the possibility of interacting with a toothed lock mounted on the bed, spring-loaded a cassette position stopper, the cassette is fitted with a locking rack mounted with the possibility of interaction 50 stopper cassette position, cog rake mechanism of step feed 50 stopper cassette position, cog rake mechanism of step feed mounted on the cassette, and the toothed locking mechanism is installed with the possibility of at least two pairs of teeth interacting with the step feed mechanism and reciprocating movement in the direction of movement of the cassette, additionally spring-loaded in the direction of movement and provided with a displacement adjustment unit, while the centering pins are made expansion tubes under the inner surface of the tubes, and catchers are made in the form of the possibility of reciprocating movement in the direction of movement of the cassette plates with holes under the outer surface of the tubes, /five % ± W 16 19 A-.U-U 12 7 but % . % ///// A Editor A.Vorovich Compiled by V.Eroshkin Tehred V. Kadar Proofreader P. Pojo Order 80/14 Circulation 976Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 fej